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Localisation, Communication and Networking with VLC: Challenges and Opportunities
[article]
2017
arXiv
pre-print
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ranging from the understanding of optical communications and signal processing techniques to the development of disruptive networking solutions and to the exploitation of joint localisation and communications ...
Building on these new understandings and exciting developments, this paper provides an overview on the three inter-linked research strands of VLC, namely localisation, communications and networking. ...
When considering the multi-carrier modulation family, the celebrated Optical Orthogonal Frequency Division Multiplexing (OOFDM) schemes are often employed. ...
arXiv:1709.01899v1
fatcat:a2eho3bqibhydmroppvp3j6f6m
Towards Integrated Sensing and Communications for 6G: A Standardization Perspective
[article]
2023
arXiv
pre-print
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Finally, future aspects are discussed to open various research opportunities and challenges on the ISAC technology towards 6G wireless communications. ...
Moreover, we present key enabling technologies, including intelligent metasurface-aided ISAC, as well as Orthogonal Time Frequency Space (OTFS) waveform design and interference management for ISAC. ...
However, the performance of the classical orthogonal frequency division multiplexing (OFDM) modulation suffers from high Doppler spread, specifically in very high frequencies where the channel is doubly ...
arXiv:2308.01227v1
fatcat:darp54erfbfmnkblctf7jcupx4
LiFi Through Reconfigurable Intelligent Surfaces: A New Frontier for 6G?
[article]
2021
arXiv
pre-print
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Light fidelity (LiFi), which is based on visible light communications (VLC), is celebrated as a cutting-edge technological paradigm that is envisioned to be an indispensable part of 6G systems. ...
, such as vehicular application scenarios. ...
Configurable Wavelength Division Multiplexing (WDM) Transceivers In WDM, data streams are multiplexed on distinct wavelengths by utilising a combination of different coloured LEDs. ...
arXiv:2104.02390v3
fatcat:v6kidus2c5hgbic264hrphvr6a
6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities
[article]
2022
arXiv
pre-print
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To this end, we provide an overview on the recent advances of machine learning in 6G vehicular networks. ...
Aiming for truly intelligent transportation systems, we envision that machine learning will play an instrumental role for advanced vehicular communication and networking. ...
ML for New Physical Layer The vast range of data services in future V2X communications necessitates the judicious selection of coding, modulation, waveform, and multiple access schemes. ...
arXiv:2012.07753v2
fatcat:u5edqsewbzgthlkgc3nooqmdo4
Seven Defining Features of Terahertz (THz) Wireless Systems: A Fellowship of Communication and Sensing
[article]
2021
arXiv
pre-print
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bands, 4) Joint sensing and communication systems, 5) PHY-layer procedures, 6) Spectrum access techniques, and 7) Real-time network optimization. ...
Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. ...
AoSA
Array of subarray
OFDM
Orthogonal frequency division multiplexing
OFDMA
Orthogonal frequency division multiple access
LEO
Low earth orbit
AI
Artificial intelligence
SLAM
Simultaneous ...
arXiv:2102.07668v2
fatcat:lg3dphy2zvhlhhwrpo7omwwp4i
Performance Investigation of NOMA versus OMA Techniques for mmWave Massive MIMO Communications
2021
IEEE Access
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To address this, a simulation-based comparative study between NOMA and orthogonal multiple access (OMA) techniques for mmWave massive multiple-input and multiple-output (MIMO) communications is presented ...
Also, it is demonstrated that NOMA not only has good adaptability but also can outperform other OMA techniques for mmWave massive MIMO communications. ...
Compared to orthogonal multiple access (OMA) used in 4G, orthogonal frequency division multiplexing (OFDM) of 5G can provide faster transmission speed by reducing the time duration of OFDM symbols and ...
doi:10.1109/access.2021.3102301
fatcat:dtnkiowxojh3xdletoalplvwju
6G Wireless Communications Networks: A Comprehensive Survey
2021
IEEE Access
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The commercial fifth-generation (5G) wireless communications networks have already been deployed with the aim of providing high data rates. ...
a substantial burden on the 5G wireless networks. ...
Different technologies such as orthogonal frequency division multiplexing (OFDM), coordinated multiple transmission/reception (CoMP), and multiple-input and multiple-output (MIMO) techniques have been ...
doi:10.1109/access.2021.3124812
fatcat:qomuon5t4remrfoxzjksauto6q
6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities
2022
Proceedings of the IEEE
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This article provides a comprehensive overview of the scientific and technological advances that have the capability to shape future 6G vehicle-to-everything (6G-V2X) communications. ...
ML for New Physical Layer The vast range of data services in future V2X communications necessitates the judicious selection of coding, modulation, waveform, and multiple access schemes. ...
For example, how to efficiently coordinate and schedule different users for NOMA transmissions to co-exist with the current OMA (e.g., orthogonal frequency-division multiple access) communications? ...
doi:10.1109/jproc.2022.3173031
fatcat:vo37ywop6babtmnl7nnq3kmgqa
Demystifying Wireless Technologies: Navigating Through The Wireless Technology Maze
2003
Communications of the Association for Information Systems
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Most of the data from mobile computers will be carried over by emerging wireless networks. Many wireless technologies and standards are now available. ...
Most of the data from mobile computers will be carried over by emerging wireless networks. Many wireless technologies and standards are now available. ...
In contrast, the physical layers in data communication technologies use very sophisticated modulation techniques such as code division multiple access (CDMA), frequency hopping spread spectrum (FHSS) and ...
doi:10.17705/1cais.01212
fatcat:7a5nltjwknb2bhpuiy2yre7w3m
A Survey on Orthogonal Time Frequency Space: New Delay Doppler Communications Paradigm in 6G era
[article]
2022
arXiv
pre-print
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In such scenarios, conventional orthogonal frequency division multiplexing (OFDM) modulation, which has been widely deployed in the cellular and Wi-Fi communications systems, will suffer from performance ...
Recent researches also show that the direct interaction of information and physical world in the DD domain makes OTFS an promising waveform for realizing integrated sensing and communications (ISAC). ...
Therefore, in addition to the physical layer technique, cross-layer joint design including both physical and network layers is an interesting but challenging task. ...
arXiv:2211.12955v1
fatcat:4ef26y5tsfcj7lkwa2vxmda4be
Terahertz Communications and Sensing for 6G and Beyond: A Comprehensive Review
[article]
2024
arXiv
pre-print
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2023 pre-print arXiv:2307.10321v1 fatcat:vwwvbvlvgbetnpxrve5zlglzqq
The THz band is one potential enabler to this end due to the large unused frequency bands and the high spatial resolution enabled by the short signal wavelength and large bandwidth. ...
channel modeling, measurement campaigns, antennas, transceiver devices, beamforming, networking, the integration of communications and sensing, and experimental testbeds. ...
Therefore, the single-carrier waveform is more preferred compared to the orthogonal frequency-division multiplexing (OFDM) waveform [516] . ...
arXiv:2307.10321v2
fatcat:4yb72e7mxvbllam53w3hotvwea
6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities
[article]
2021
arXiv
pre-print
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to the design of next generation core networks, new modulation and coding methods, novel multiple access techniques, antenna arrays, wave propagation, radio-frequency transceiver design, as well as real-time ...
We comprehensively characterize the limitations that must be overcome to realize working systems in these bands; and provide a unique perspective on the physical, as well as higher layer challenges relating ...
Among bi-orthogonal methods, there exists cyclic prefix OFDM, windowed OFDM, and Bi-orthogonal frequency-division multiplexing (FDM). ...
arXiv:2008.03213v2
fatcat:whhsaotwszcjlfdx4nwc2qpj6y
Non-Coherent and Backscatter Communications: Enabling Ultra-Massive Connectivity in the Era Beyond 5G
[article]
2020
arXiv
pre-print
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2020 pre-print arXiv:2005.10937v2 fatcat:vhhyppyrbvdu5oo6rx2raenkiuOther Versions
light communications (VLC), quantum-assisted communications, reconfigurable large intelligent surfaces (RLIS), non-orthogonal multiple access (NOMA), and machine learning (ML)-aided intelligent networks ...
These challenges, partly emerged with the advent of massive machine-type communications (mMTC) services, require extensive research innovations to sustain the evolution towards enhanced-mMTC (e-mMTC) with ...
Division Multiple Access (CDMA) rely on the concept of orthogonality either in time, frequency or code domain. ...
arXiv:2005.10937v3
fatcat:nsyufug2dbbvzeribg4bgymyfa
A Comprehensive Survey of 6G Wireless Communications
[article]
2021
arXiv
pre-print
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2020 pre-print arXiv:2101.03889v1 fatcat:ht3qzpx3x5gkrjoftnlcl6jtae
Next, we discuss security and privacy techniques that can be applied to protect data in 6G. ...
Since edge devices are expected to gain popularity soon, the vast amount of generated data and frequent data exchange make the leakage of data easily. ...
The orthogonal frequency division multiplexing (OFDM) technique is widely used due to its high spectral efficiency in 4G and 5G communications and will still be used in 6G. ...
arXiv:2101.03889v2
fatcat:35sfasu4bbgttg3cnsfzp62oda
Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems
2019
IEEE Open Journal of the Communications Society
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Ultra-high bandwidth, negligible latency and seamless communication are envisioned as milestones that will revolutionize the way by which societies create, distribute and consume information. ...
To this end, the Terahertz (THz) frequency band (0.1-10 THz) has received noticeable attention in the research community as an ideal choice for scenarios involving high-speed transmission. ...
frequency division multiplexing (FDM) and polarization division multiplexing (PDM) have been demonstrated in [82] , in which data rates up to 56 Gbps were obtained. ...
doi:10.1109/ojcoms.2019.2953633
fatcat:sabw2nhimzcixduohzgn4e7nxa
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